If Window = 1 then

[Daniel]

Hi
Tag your door and window object and then create event based script triggered by this tag then make script like that

Code:

window = grp.getvalue('window object')
door = grp.getvalue('door object')


if (window and door) then
 --dosomething()
end

thank you Daniel for your quick feedback. 

I just wonder which KNX group address I use for the trigger? 

so the trigger would also start the script when the door is closed. But the If does not execute anything. 

Is this the basic procedure with the logic machine?

Not KNX group only the TAG I asked you to create. This way script will run each time when window or the door group will receive telegram.